Song keys:
CL=C left, CR = C right, CD = C down, CU = C up, A=A
summons a scarecrow at certain areas that you can use your hookshot on to get to things. Look for areas where Navi turns green but there doesn't seem to be anything there. To get this song, go as young Link to Lake Hylia and look for a small farm area with a scarecrow in it in the Northern section. Show him your Ocarina and he'll ask you to compose a tune. The tune has to be 8 notes long. Make it easy to remember. Also keep in mind it will play it back at the same speed you originally played it, so don't leave any long pauses in there or it will sound dumb. If you mess up you can push B to try again. Now as adult Link return to the scarecrow and play the same song for him again. Now the song you made up becomes the secret Scarecrow's song.